甲状腺片中碘的电位分析  

Potential Analysis of Iodide in Thyroid Tablets

作　　者：黎明[1] 李吉学[1] 李雄波[1] 章红娟[1] 

机构地区：[1]海军医学高等专科学校分析化学教研室

出　　处：《海军医高专学报》1996年第4期193-195,共3页

摘　　要：介绍了采用氧瓶燃烧和离子选择性电极测定药物中碘含量的方法。在由0.01 mol/LKNO_3和0.04 mol/L Vc组成的混合介质中,I^-的标准曲线在7.5×10^(-7)～1.0×10^(-2)mol/L儿浓度范围呈线性。Vc改善了I^-在溶液中的稳定性并提高了方法的准确度。用于甲状腺片中碘的分析,其相对标准偏差和回收率分别为7.8％(n=7)和100.4％。This paper describes a method for measurement of the content of iodide in Pharmaceuticals with oxygen-flask combustion and ion-selective electrode. In the mixed medium composed of 0. 01 mol/L KNO3 and 0. 04 mol/L Vc ,the calibration curve for I was linear in the concentration of 7. 5×10-7~1. 0X10-2 mol/L. The relative standard deviation and recovery of the method were 7. 8% (n = 7) and 100. 4% ,respectivity.

关 键 词：碘 电位分析 甲状腺片 氧瓶燃烧 离子选择性电极 

分 类 号：R977.1[医药卫生—药品] R927.2[医药卫生—药学]